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Anomalous cloud lines are frequently seen in satellite images as curvilinear features. These cloud lines or \"ship tracks\" are likely due to products of ship-produced hot exhaust gases that are expelled into the atmosphere, increasing the aerosol concentration in the ship track plume. NOAA 9 and 10 AVHRR data are sensitive to loud droplet size and show the ship tracks as increases in radiance due to reflectance. Twenty eight NOAA 9/10 satellite passes are analyzed. Twenty two of the passes are found to contain a total of 316 ship tracks which is significantly more than that expected by earlier ship track studies. An existing ship track detection algorithm is used to conduct a statistical comparison of ship track and non-ship track, or ambient pixel reflectance of the NOAA 9 and 10 AVHRR channels 1 (O .63 µm), 3 (3.7 µm) , and (11 µm) . The results of the statistical analysis confirm, as found in previous studies, that the ship track pixels displayed a significant increase in values for channels 1 and 3 and a very slight increase for channel 4.
Addeddate
2021-01-30 22:27:51
Advisor
Durkee, Philip A.
Corporate
Naval Postgraduate School (U.S.)
Degree_discipline
Meteorology and Physical Oceanography
Degree_grantor
Naval Postgraduate School
Degree_level
Masters
Degree_name
M.S. in Meteorology and Physical Oceanography
Department
Meteorology
Distributionstatement
Approved for public release; distribution is unlimited.
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